摘要
针对传统温度精确控制系统需要在散热率低、干扰小的情况下运行的缺陷。采用LabVIEW软件,设计开发了一款基于PID+PWM的温度控制系统。该温度控制系统在硬件上由NI-6008采集卡、温度传感器、温度变送器、固态继电器等构成;在软件上以PID+PWM算法为核心,回温预热系统为补充,最终形成一个完整的温度控制系统。实验结果表明,该系统可以在散热率较高以及干扰较大的环境下实现对温度的精确控制,温度波动范围在±0.3℃。
Since the traditional temperature accurate control system needs to run under the conditions of low heat dissipa- tion rate and weak interference, the LabVIEW software is used to design and develop a temperature control system based on PID＋PWM. The hardware of the temperature control system is composed of NI-6008 acquisition card, temperature sensor, tem- perature transmitter, solid-state relay, etc. PID＋PWM algorithm is taken as the core of the system software, and temperature re- turning and preheating system is taken as the supplement to form a complete temperature control system. Experimental results show that the system can control the temperature accurately in the environment of high heat dissipation rate and powerful interfer- ence, and temperature fluctuation range is within ±0.3 ℃.
出处
《现代电子技术》
北大核心
2017年第18期164-167,共4页
Modern Electronics Technique
基金
贵州省科学技术基金项目(黔科合J字[2015]2043)
贵州省重大基础研究专项(黔科合JZ字[2014]2001)
贵州省教育厅研究生创新计划(黔教研合JYSZ字[2014]004)
